#include <REGX52.H>

void Delay(int xms)		//@12.000MHz
{
	unsigned char i, j;
	while(xms)
	{
	i = 2;
	j = 239;
	do
	{
		while (--j);
	} while (--i);
	xms--;
	}
}


void main()
{
	while(1) //  死循环
	{
		P2=0xFE;// 1111 1110
		Delay(100);
		P2=0xFD;// 1111 1101
		Delay(600);
		P2=0xFB;// 1111 1011
		Delay(900);
		P2=0xF7;// 1111 0111
		Delay(400);
		P2=0xEF;// 1110 1111
		Delay(300);
		P2=0xDF;// 1101 1111
		Delay(100);
		P2=0xBF;// 1011 1111
		Delay(500);
		P2=0x7F;// 0111 1111
		Delay(200);
	}
}